LC75818PT

Ordering number : ENA0964B LC75818PT CMOS IC 1/8 to 1/10 Duty Dot Matrix LCD Display Controllers/Drivers with Key Input Function http://onsemi.com Overview The LC75818PT is 1/8 to 1/10 duty dot matrix LCD display controllers/drivers that support the display of characters, numbers, and symbols. In addition to generating dot matrix LCD drive signals based on data transferred serially from a microcontroller, the LC75818PT also provide on-chip character display ROM and RAM to allow display systems to be implemented easily. These products also provide up to 4 general-purpose output ports and incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring. Features Key input function for up to 30 keys (A key scan is performed only when a key is pressed.) Controls and drives a 5×7, 5×8, or 5×9 dot matrix LCD. Supports accessory display segment drive (up to 80 segments) Display technique: 1/8 duty 1/4 bias drive (5×7 dots) 1/9 duty 1/4 bias drive (5×8 dots) 1/10 duty 1/4 bias drive (5×9 dots) Display digits: 16 digits×1 line (5×7 dots, 5×8 dots, 5×9 dots) Display control memory CGROM: 240 characters (5×7, 5×8, or 5×9 dots) CGRAM: 16 characters (5×7, 5×8, or 5×9 dots) ADRAM: 16×5 bits DCRAM: 64×8 bits Instruction function Display on/off control Display shift function Sleep mode can be used to reduce current drain. Built-in display contrast adjustment circuit The frame frequency of the common and segment output waveform...